Back to index...

	/*
	* Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package javax.swing.plaf.synth;

	import java.awt.*;
	import java.beans.*;
	import javax.swing.*;
	import javax.swing.border.*;
	import javax.swing.plaf.*;
	import javax.swing.plaf.basic.*;
	import javax.swing.table.*;
	import sun.swing.table.*;

	/**
	* Provides the Synth L&F UI delegate for
	* {@link javax.swing.table.JTableHeader}.
	*
	* @author Alan Chung
	* @author Philip Milne
	* @since 1.7
	*/
	public class SynthTableHeaderUI extends BasicTableHeaderUI
	implements PropertyChangeListener, SynthUI {

	//
	// Instance Variables
	//

	private TableCellRenderer prevRenderer = null;

	private SynthStyle style;

	/**
	* Creates a new UI object for the given component.
	*
	* @param h component to create UI object for
	* @return the UI object
	*/
	public static ComponentUI createUI(JComponent h) {
	return new SynthTableHeaderUI();
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void installDefaults() {
	prevRenderer = header.getDefaultRenderer();
	if (prevRenderer instanceof UIResource) {
	header.setDefaultRenderer(new HeaderRenderer());
	}
	updateStyle(header);
	}

	private void updateStyle(JTableHeader c) {
	SynthContext context = getContext(c, ENABLED);
	SynthStyle oldStyle = style;
	style = SynthLookAndFeel.updateStyle(context, this);
	if (style != oldStyle) {
	if (oldStyle != null) {
	uninstallKeyboardActions();
	installKeyboardActions();
	}
	}
	context.dispose();
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void installListeners() {
	super.installListeners();
	header.addPropertyChangeListener(this);
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void uninstallDefaults() {
	if (header.getDefaultRenderer() instanceof HeaderRenderer) {
	header.setDefaultRenderer(prevRenderer);
	}

	SynthContext context = getContext(header, ENABLED);

	style.uninstallDefaults(context);
	context.dispose();
	style = null;
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void uninstallListeners() {
	header.removePropertyChangeListener(this);
	super.uninstallListeners();
	}

	/**
	* Notifies this UI delegate to repaint the specified component.
	* This method paints the component background, then calls
	* the {@link #paint(SynthContext,Graphics)} method.
	*
	* <p>In general, this method does not need to be overridden by subclasses.
	* All Look and Feel rendering code should reside in the {@code paint} method.
	*
	* @param g the {@code Graphics} object used for painting
	* @param c the component being painted
	* @see #paint(SynthContext,Graphics)
	*/
	@Override
	public void update(Graphics g, JComponent c) {
	SynthContext context = getContext(c);

	SynthLookAndFeel.update(context, g);
	context.getPainter().paintTableHeaderBackground(context,
	g, 0, 0, c.getWidth(), c.getHeight());
	paint(context, g);
	context.dispose();
	}

	/**
	* Paints the specified component according to the Look and Feel.
	* <p>This method is not used by Synth Look and Feel.
	* Painting is handled by the {@link #paint(SynthContext,Graphics)} method.
	*
	* @param g the {@code Graphics} object used for painting
	* @param c the component being painted
	* @see #paint(SynthContext,Graphics)
	*/
	@Override
	public void paint(Graphics g, JComponent c) {
	SynthContext context = getContext(c);

	paint(context, g);
	context.dispose();
	}

	/**
	* Paints the specified component.
	*
	* @param context context for the component being painted
	* @param g the {@code Graphics} object used for painting
	* @see #update(Graphics,JComponent)
	*/
	protected void paint(SynthContext context, Graphics g) {
	super.paint(g, context.getComponent());
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public void paintBorder(SynthContext context, Graphics g, int x,
	int y, int w, int h) {
	context.getPainter().paintTableHeaderBorder(context, g, x, y, w, h);
	}
	//
	// SynthUI
	//
	/**
	* {@inheritDoc}
	*/
	@Override
	public SynthContext getContext(JComponent c) {
	return getContext(c, SynthLookAndFeel.getComponentState(c));
	}

	private SynthContext getContext(JComponent c, int state) {
	return SynthContext.getContext(c, style, state);
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void rolloverColumnUpdated(int oldColumn, int newColumn) {
	header.repaint(header.getHeaderRect(oldColumn));
	header.repaint(header.getHeaderRect(newColumn));
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public void propertyChange(PropertyChangeEvent evt) {
	if (SynthLookAndFeel.shouldUpdateStyle(evt)) {
	updateStyle((JTableHeader)evt.getSource());
	}
	}

	private class HeaderRenderer extends DefaultTableCellHeaderRenderer {
	HeaderRenderer() {
	setHorizontalAlignment(JLabel.LEADING);
	setName("TableHeader.renderer");
	}

	@Override
	public Component getTableCellRendererComponent(JTable table, Object value,
	boolean isSelected,
	boolean hasFocus,
	int row, int column) {

	boolean hasRollover = (column == getRolloverColumn());
	if (isSelected \|\| hasRollover \|\| hasFocus) {
	SynthLookAndFeel.setSelectedUI((SynthLabelUI)SynthLookAndFeel.
	getUIOfType(getUI(), SynthLabelUI.class),
	isSelected, hasFocus, table.isEnabled(),
	hasRollover);
	} else {
	SynthLookAndFeel.resetSelectedUI();
	}

	//stuff a variable into the client property of this renderer indicating the sort order,
	//so that different rendering can be done for the header based on sorted state.
	RowSorter rs = table == null ? null : table.getRowSorter();
	java.util.List<? extends RowSorter.SortKey> sortKeys = rs == null ? null : rs.getSortKeys();
	if (sortKeys != null && sortKeys.size() > 0 && sortKeys.get(0).getColumn() ==
	table.convertColumnIndexToModel(column)) {
	switch(sortKeys.get(0).getSortOrder()) {
	case ASCENDING:
	putClientProperty("Table.sortOrder", "ASCENDING");
	break;
	case DESCENDING:
	putClientProperty("Table.sortOrder", "DESCENDING");
	break;
	case UNSORTED:
	putClientProperty("Table.sortOrder", "UNSORTED");
	break;
	default:
	throw new AssertionError("Cannot happen");
	}
	} else {
	putClientProperty("Table.sortOrder", "UNSORTED");
	}

	super.getTableCellRendererComponent(table, value, isSelected,
	hasFocus, row, column);

	return this;
	}

	@Override
	public void setBorder(Border border) {
	if (border instanceof SynthBorder) {
	super.setBorder(border);
	}
	}
	}
	}

Back to index...